package com.zane.dao.Impl;

import com.zane.dao.BookDao;
import org.springframework.stereotype.Repository;

@Repository
public class BookDaoImpl implements BookDao {
    public Object update() {
        System.out.println("book dao update is running ...");
        return null;
    }

    public int select() {
            System.out.println("book dao select is running...");
            int i = 1/0;
            return 100;
    }
}
